SouraVX marked an inline comment as done.
SouraVX added inline comments.

================
Comment at: include/clang/AST/DeclCXX.h:2931
+    lang_cxx_11 = /* DW_LANG_C_plus_plus_11 */ 0x001a,
+    lang_cxx_14 = /* DW_LANG_C_plus_plus_14 */ 0x0021
   };
----------------
aprantl wrote:
> SouraVX wrote:
> > aprantl wrote:
> > > I understand that DWARF does not define a C++17 language constant, but in 
> > > the AST I fell like we should represent it, even if it is being lowered 
> > > into C++14 for the debug info.
> > It's represented in AST as enum in LangStandard.h file. We didn't add it 
> > here, as DWARF5 has no opcode for C++17. If we add it here some opcode, 
> > this might cause conflict with future upcoming DWARF standard.
> Since these are the DWARF DW_lang constants, we shouldn't repeat their 
> numeric values here. Can we write this as
> `lang_c = llvm::dwarf::DW_LANG_C`, etc?
We can do this, but not sure whether, we should do this in AST ?
Since it's a language specific part, if we integrate this from DWARF opcodes it 
will unnecessary pollute AST ?  Other language opcodes will also be visible 
here. 


Repository:
  rC Clang

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D67613/new/

https://reviews.llvm.org/D67613



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